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TMP103

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±2°C Digital temperature sensor with I2C/SMBus capable of 1.4V in WCSP

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Data sheet

TMP103

ACTIVE
Data sheet Order now

Product details

Local sensor accuracy (Max) (+/- C) 2 Type Local Operating temperature range (C) -40 to 125 Supply voltage (Min) (V) 1.4 Interface type I2C, SMBus Supply voltage (Max) (V) 3.6 Supply current (Max) (uA) 3 Temp resolution (Max) (bits) 8 Features One-shot conversion Remote channels (#) 0 Addresses 8 Rating Catalog
Local sensor accuracy (Max) (+/- C) 2 Type Local Operating temperature range (C) -40 to 125 Supply voltage (Min) (V) 1.4 Interface type I2C, SMBus Supply voltage (Max) (V) 3.6 Supply current (Max) (uA) 3 Temp resolution (Max) (bits) 8 Features One-shot conversion Remote channels (#) 0 Addresses 8 Rating Catalog
DSBGA (YFF) 4 1 mm² .8 x .8
  • Multiple Device Access (MDA):
    • Global Read/Write Operations
  • I2C™ and SMBus™-Compatible Interface
  • Resolution: 8 Bits
  • Accuracy: ±1°C Typical (–10°C to 100°C)
  • Low Quiescent Current:
    • 3-µA Active IQ at 0.25 Hz
    • 1-µA Shutdown
  • Supply Range: 1.4 V to 3.6 V
  • Digital Output
  • 4-Ball WCSP (DSBGA) Package
  • Multiple Device Access (MDA):
    • Global Read/Write Operations
  • I2C™ and SMBus™-Compatible Interface
  • Resolution: 8 Bits
  • Accuracy: ±1°C Typical (–10°C to 100°C)
  • Low Quiescent Current:
    • 3-µA Active IQ at 0.25 Hz
    • 1-µA Shutdown
  • Supply Range: 1.4 V to 3.6 V
  • Digital Output
  • 4-Ball WCSP (DSBGA) Package

The TMP103 is a digital output temperature sensor in a four-ball wafer chip-scale package (WCSP). The TMP103 is capable of reading temperatures to a resolution of 1°C.

The TMP103 features a two-wire interface that is compatible with both I2C and SMBus interfaces. In addition, the interface supports multiple device access (MDA) commands that allow the master to communicate with multiple devices on the bus simultaneously, eliminating the need to send individual commands to each TMP103 on the bus.

Up to eight TMP103s can be tied together in parallel and easily read by the host. The TMP103 is especially suitable for space-constrained, power-sensitive applications with multiple temperature measurement zones that must be monitored.

The TMP103 is specified for operation over a temperature range of –40°C to 125°C.

The TMP103 is a digital output temperature sensor in a four-ball wafer chip-scale package (WCSP). The TMP103 is capable of reading temperatures to a resolution of 1°C.

The TMP103 features a two-wire interface that is compatible with both I2C and SMBus interfaces. In addition, the interface supports multiple device access (MDA) commands that allow the master to communicate with multiple devices on the bus simultaneously, eliminating the need to send individual commands to each TMP103 on the bus.

Up to eight TMP103s can be tied together in parallel and easily read by the host. The TMP103 is especially suitable for space-constrained, power-sensitive applications with multiple temperature measurement zones that must be monitored.

The TMP103 is specified for operation over a temperature range of –40°C to 125°C.
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Technical documentation

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Type Title Date
* Data sheet TMP103 Low-Power, Digital Temperature Sensor With Two-Wire Interface in WCSP datasheet (Rev. D) PDF | HTML 21 Dec 2018
Application note Improving System Reliability in Auto and Ind. Cameras w/ AccurateTemp. Sensing PDF | HTML 03 Jan 2022
Technical article How to choose the right thermistor for your temperature sensing application 13 Feb 2020
Technical article How to enable thermal safety for automotive infotainment and cluster systems 15 Oct 2019
Technical article Driving industrial innovation with small-size sensors 12 Sep 2019
Application note Temperature sensors: PCB guidelines for surface mount devices (Rev. A) 18 Jan 2019
EVM User's guide TMP103EVM User Guide (Rev. A) 18 Apr 2018
Technical article Real-time temperature sensing with dual-mode connectivity 03 Nov 2016
User guide SM-USB-DIG Platform User Guide 14 Jan 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TMP103EVM — TMP103 Evaluation Module

The TMP103EVM is a simple EVM designed to allow full evaluation of the TMP103 device. The EVM has eight total TMP103's installed. Each device is tied together but has a separate hardware address. This allows the user to take advantage of the I2C general call described in the TMP103 product data (...)

User guide: PDF
Not available on TI.com
Driver or library

TMP103SW-LINUX — Linux Driver for TMP103

The Linux driver support the TMP103 Temperature Sensor. The Linux driver supports communication through the I2C bus and interfaces with the Hardware Monitoring sub-system.
Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:
  • tmp103
Linux Source (...)
View options
IDE, configuration, compiler or debugger

ASC-STUDIO — Analog signal chain (ASC) studio

To help simplify configuration challenges and accelerate software development, we created ASC studio, an intuitive graphical utility for configuring all aspects of TI sensors and in the future other signal chain components.  ASC studio helps you select configuration parameters visually so that (...)
Develop in the cloud
Support software

TMP103EVM Source Code (Rev. A)

SBOC392A.ZIP (4498 KB)
Download
Support software

TMP103EVM Software (Rev. A)

SBOC393A.ZIP (6212 KB)
Download
Simulation model

TMP103 IBIS Model

SBOM450.ZIP (30 KB) - IBIS Model
Download
Schematic

TMP103EVM Schematic

SBOR013.PDF (24 KB)
Download
Reference designs

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This reference design uses nano-power operational amplifiers, comparators, system timers, temperature sensors and the SimpleLink™ ultra-low power 2.4-GHz wireless microcontroller (MCU) platform to demonstrate an ultra-low power carbon-monoxide detector implementation. These technologies lead (...)
Design guide: PDF
Schematic: PDF
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Schematic: PDF
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Schematic: PDF
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Design guide: PDF
Schematic: PDF
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This reference design is a sub-system design for NFC (Near Field Communication) and authentication.  This subsystem design is intended as a reference design for part authentication, access control, personal identification, battery-less sensor interface, security token transfer, and low power (...)
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Schematic: PDF
Reference designs

TIDA-00215 — Distance and Weight Measurement Using Inductive Sensing Reference Design

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Design guide: PDF
Schematic: PDF
Package Pins Download
DSBGA (YFF) 4 View options

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